Make "Add contact" image/text ignored when copying/selecting recipients in main headers (#5103)

program/steps/mail/func.inc

@@ -1675,8 +1675,9 @@ function rcmail_address_string($input, $max=null, $linked=false, $addicon=null,
                             rcmail_output::JS_OBJECT_NAME, rcube::JQ($string)),
                     ),
                     html::img(array(
-                        'src' => $RCMAIL->output->abs_url($addicon, true),
-                        'alt' => "Add contact",
+                        'src'   => $RCMAIL->output->abs_url($addicon, true),
+                        'alt'   => "Add contact",
+                        'class' => 'noselect',
                 )));
             }
         }

skins/classic/common.css

@@ -161,6 +161,15 @@ img
   display: none;
 }
 
+.noselect
+{
+  user-select: none;
+  -moz-user-select: none;
+  -khtml-user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+}
+
 /* fixes vertical alignment of checkboxes and labels */
 label input,
 label span

skins/larry/styles.css

@@ -98,6 +98,14 @@ label input + span {
 	vertical-align: middle;
 }
 
+.noselect {
+	user-select: none;
+	-moz-user-select: none;
+	-khtml-user-select: none;
+	-ms-user-select: none;
+	-webkit-user-select: none;
+}
+
 /*** buttons ***/
 
 input.button {